<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <title>Document</title>
  <style>
    .box{
      width:130px;
      height:100px;
      border-top:10px solid #000;
      border-radius: 20px;
    }
    .box1{
      width:0px;
      height:0px;
      border-width: 10px;
      border-top-left-radius: 10px;
      border-top-right-radius: 10px;
      border-bottom-right-radius: 10px;
      border-bottom-left-radius: 10px;
      border-color: #000;
      border-style: solid;
    }
  </style>
</head>
<body>
  <div class="box"></div>
  <div class="box1"></div>
</body>
</html>